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世界最大のコンクリートポンプ、福島へ!

世界最大のコンクリートポンプ、日本へ輸送
SRS concrete pump heading to Japan nuclear site

By Rob Pavey
Staff Writer
Thursday, March 31, 2011 1:05 PM
Last updated 8:11 PM
The Augasta Chronicle

米国政府は、震災と津波によって大きな被害を受けた福島原発の緊急対策の一環として、サバンナ・リバーで建設中のMOX燃料工場の現場で使われている、世界最大のコンクリートポンプを、急きょ、福島原発の現場へ輸送する事を決めた。

「結論から言うと、こいつは、今、俺たち以上に、日本で必要とされているということだ。俺たちは我慢するさ」と、ジェリー・アッシュモアは言う。同氏はアッシュモア・コンクリート社の社長で、サバンナ・リバーのMOX燃料工場建設現場における、コンクリートのサプライヤーだ。

同氏によると、この世界最大のコンクリートポンプはドイツのプツマイスター社製で、70メートルのブームを持ち、重量19万ポンド(86.2トン)。リモート・コントロールで操作できるので、福島原発のような高度の放射線汚染が懸念され、リスクの高い現場にはもってこいだという。

AshmoreConcrete.jpg
70メートルのブームを持つ世界最大のコンクリートポンプ:ドイツ、プツマイスター社製

「世界にこのポンプは三台しかない。その三台のうちで、今回、福島の現場で使えそうなのは俺たちのものを含めて二台だけだ。だからとにかく一刻も速く送ることに決めたんだ。」アッシュモア氏は続ける、「現場は時間との戦いだからな」

このポンプは3月20日、水曜日に、アイケン郡の現場からサウスカロライナ州のハナハンにある工場に一旦送られ、必要な装備を施された後、アトランタのハーツフィールド空港に運ばれる予定だ。そこから世界最大の貨物輸送機、ロシア製のアントノフ225に積みこまれ、東京に向けて飛び立つことになっている。

アトランタへの移動は陸路大型トラックによってなされる予定だが、それにはジョージア州政府の特別許可が必要とされる。車体の重量が重すぎるからだ。全ての段取りが順調に進めば、来週中には日本に向けて旅立つことが出来るだろう。

プツマイスター社によると、同社製のもう少し小型のタイプのポンプがすでに4台、福島原発の現場で活躍している。原子炉の冷却のための放水作業に使われているのだ。

今回サバンナ・リバーから運ばれるものに加えてもう一台、現在カリフォルニアの別の現場にある、これも70メートルのブームをもつポンプの合計2台は、福島の現場で、まず放水作業に使用され、その後、コンクリートの注入作業に使われる予定だという。

アッシュモア氏によると、「自分らの理解では、現地では多分、『次の段階』の対策の準備に取りかかろうとしているのだと思う。いずれ、山ほどコンクリートが必要になるのだろう」

プツマイスター社の機材は、1,980年代、チェルノブイリの事故現場の原子炉を大量のコンクリートで、いわゆる「石棺」に閉じ込めた時にも使用された。

アメリカから運ばれる二台の70メートルブームを持つポンプに加えて、ベトナムの建設現場から58メートルブームのポンプが1台日本に振り向けられることになっている。また、ドイツからは62メートルのブームを持つ2台のポンプがすでに日本へ向けて輸送中だ。

アッシュモア社の担当者はすでに、米国エネルギー庁からMOX燃料工場の建設を受注している AREVA MOXサービス社に対して、今回現場から離れることになったポンプはもう二度と戻ってこない、と通知したという。社長のアッシュモア氏は、「持って帰ってまた使えるなんて、そんなことでは済まないさ」と語った。

【中略】

今回のこのポンプの輸送に伴う諸費用は、アントノフに載せてアトランタから東京までの空輸費用140万ドルも含めて、プツマイスター社との間の契約により、すべて東京電力が負担する事になっている。




concret pump
”Image 1628-2: The M 70-5 is the world’s largest series-produced truck-mounted concrete pump that has been successfully tried and tested in practical use”



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The world's largest concrete pump, deployed at the construction site of the U.S. government's $4.86 billion mixed oxide fuel plant at Savannah River Site, is being moved to Japan in a series of emergency measures to help stabilize the Fukushima reactors.

* Photos

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Ashmore Concrete Contractors', Putzmeister 70Z concrete boom pump. The world's largest concrete pump, deployed at the construction site of the U.S. government's $4.86 billion mixed oxide fuel plant at Savannah River Site, is being moved to Japan in a series of emergency measures to help stabilize the Fukushima reactors. The 190,000-pound pump, made by Germany-based Putzmeister has a 70-meter boom and can be controlled remotely, making it suitable for use in the unpredictable and highly radioactive environment of the doomed.Photo supplied by Jerry Ashmore.
Ashmore Concrete Contractors', Putzmeister 70Z concrete boom pump. The world's largest concrete pump, deployed at the construction site of the U.S. government's $4.86 billion mixed oxide fuel plant at Savannah River Site, is being moved to Japan in a series of emergency measures to help stabilize the Fukushima reactors. The 190,000-pound pump, made by Germany-based Putzmeister has a 70-meter boom and can be controlled remotely, making it suitable for use in the unpredictable and highly radioactive environment of the doomed.Photo supplied by Jerry Ashmore.
Back | Next
Ashmore Concrete Contractors', Putzmeister 70Z concrete boom pump. The world's largest concrete pump, deployed at the construction site of the U.S. government's $4.86 billion mixed oxide fuel plant at Savannah River Site, is being moved to Japan in a series of emergency measures to help stabilize the Fukushima reactors. The 190,000-pound pump, made by Germany-based Putzmeister has a 70-meter boom and can be controlled remotely, making it suitable for use in the unpredictable and highly radioactive environment of the doomed.Photo supplied by Jerry Ashmore.
Ashmore Concrete Contractors', Putzmeister 70Z concrete boom pump. The world's largest concrete pump, deployed at the construction site of the U.S. government's $4.86 billion mixed oxide fuel plant at Savannah River Site, is being moved to Japan in a series of emergency measures to help stabilize the Fukushima reactors. The 190,000-pound pump, made by Germany-based Putzmeister has a 70-meter boom and can be controlled remotely, making it suitable for use in the unpredictable and highly radioactive environment of the doomed.Photo supplied by Jerry Ashmore.
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PhotoJerry Ashmore, Jr. walks past a 52-meter crane housed in the lot March 31, 2011 at Ashmore Concrete in Augusta, Ga. According to Ashmore, the company is currently getting their only 70-meter concrete cranes from the United States to help with relief efforts in Japan. Once there, the goal is to fill the nuclear reactor damaged by the recent earthquake. The 190,000 pound crane will be flown in the largest operating plane, Ukraine's Anatov 225. "My first thought was the Department of Energy would be ticked off I'm "stealing" their equipment, even though I'm the one that owns it," Ashmore said with a laugh. "But Japan needs it right now a whole lot more," he added seriously. The crane is one of three in existence from the U.S. Ashmore said. The crane showns is similar to the one that will be used overseas. Corey Perrine/Staff
Corey Perrine/Staff
PhotoJerry Ashmore, Jr. walks past a 52-meter crane housed in the lot March 31, 2011 at Ashmore Concrete in Augusta, Ga. According to Ashmore, the company is currently getting their only 70-meter concrete cranes from the United States to help with relief efforts in Japan. Once there, the goal is to fill the nuclear reactor damaged by the recent earthquake. The 190,000 pound crane will be flown in the largest operating plane, Ukraine's Anatov 225. "My first thought was the Department of Energy would be ticked off I'm "stealing" their equipment, even though I'm the one that owns it," Ashmore said with a laugh. "But Japan needs it right now a whole lot more," he added seriously. The crane is one of three in existence from the U.S. Ashmore said. The crane showns is similar to the one that will be used overseas.
Back | Next
PhotoJerry Ashmore, Jr. shows off the controls used to operate a 52-meter crane March 31, 2011 at Ashmore Concrete in Augusta, Ga. According to Ashmore, the company is currently getting their only 70-meter concrete cranes from the United States to help with relief efforts in Japan. Once there, the goal is to fill the nuclear reactor damaged by the recent earthquake. The 190,000 pound crane will be flown in the largest operating plane, Ukraine's Anatov 225. "My first thought was the Department of Energy would be ticked off I'm "stealing" their equipment, even though I'm the one that owns it," Ashmore said with a laugh. "But Japan needs it right now a whole lot more," he added seriously. The crane is one of three in existence from the U.S. Ashmore said. Corey Perrine/Staff
Corey Perrine/Staff
PhotoJerry Ashmore, Jr. shows off the controls used to operate a 52-meter crane March 31, 2011 at Ashmore Concrete in Augusta, Ga. According to Ashmore, the company is currently getting their only 70-meter concrete cranes from the United States to help with relief efforts in Japan. Once there, the goal is to fill the nuclear reactor damaged by the recent earthquake. The 190,000 pound crane will be flown in the largest operating plane, Ukraine's Anatov 225. "My first thought was the Department of Energy would be ticked off I'm "stealing" their equipment, even though I'm the one that owns it," Ashmore said with a laugh. "But Japan needs it right now a whole lot more," he added seriously. The crane is one of three in existence from the U.S. Ashmore said.
Back | Next
PhotoJerry Ashmore, Jr. shows off the hopper used to keep concrete agitated when poured on a 52-meter crane truck March 31, 2011 at Ashmore Concrete in Augusta, Ga. According to Ashmore, the company is currently getting their only 70-meter concrete cranes from the United States to help with relief efforts in Japan. Once there, the goal is to fill the nuclear reactor damaged by the recent earthquake. The 190,000 pound crane will be flown in the largest operating plane, Ukraine's Anatov 225. "My first thought was the Department of Energy would be ticked off I'm "stealing" their equipment, even though I'm the one that owns it," Ashmore said with a laugh. "But Japan needs it right now a whole lot more," he added seriously. The crane is one of three in existence from the U.S. Ashmore said. Corey Perrine/Staff
Corey Perrine/Staff
PhotoJerry Ashmore, Jr. shows off the hopper used to keep concrete agitated when poured on a 52-meter crane truck March 31, 2011 at Ashmore Concrete in Augusta, Ga. According to Ashmore, the company is currently getting their only 70-meter concrete cranes from the United States to help with relief efforts in Japan. Once there, the goal is to fill the nuclear reactor damaged by the recent earthquake. The 190,000 pound crane will be flown in the largest operating plane, Ukraine's Anatov 225. "My first thought was the Department of Energy would be ticked off I'm "stealing" their equipment, even though I'm the one that owns it," Ashmore said with a laugh. "But Japan needs it right now a whole lot more," he added seriously. The crane is one of three in existence from the U.S. Ashmore said.

* Putzmeister: largest concrete pumps in the world

* Ashmore Concrete

* The MOX Plant:


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"The bottom line is, the Japanese need this particular unit worse than we do, so we're giving it up," said Jerry Ashmore, whose company, Augusta-based Ashmore Concrete Contractors, Inc., is the concrete supplier for the MOX facility.

The 190,000-pound pump, made by German-based Putzmeister has a 70-meter boom and can be controlled remotely, making it suitable for use in the unpredictable and highly radioactive environment of the doomed nuclear reactors in Japan, he said.

"There are only three of these pumps in the world, of which two are suited for this work, so we have to get it there as soon as we can," Ashmore said in an interview Thursday. "Time is very much a factor."

The pump was moved Wednesday from the construction site in Aiken County to a facility in Hanahan, S.C., for minor modifications, and will be trucked to Atlanta's Hartsfield-Jackson International Airport, where it will be picked up by the world's largest cargo plane, the Russian-made Antonov 225, which will fly it to Tokyo.

The move to Atlanta, he added, will require expedited special permits from Georgia's Department of Transportation, because of the weight of the equipment. If all goes well, the pump will be en route to Japan next week.

According to Putzmeister's Web site, four smaller pumps made by the company are already at work at Fukushima pumping water onto the overheated reactors.

Initially, the pump from Savannah River Site, and another 70-meter Putzmeister now at a construction site in California, will be used to pump water -- and later will be used to move concrete.

"Our understanding is, they are preparing to go to next phase and it will require a lot of concrete," Ashmore said, noting that the 70-meter pump can move 210 cubic yards of concrete per hour.

Putzmeister equipment was also used in the 1980s, when massive amounts of concrete were used to entomb the melted core of the reactor at Chernobyl.

In addition to the equipment now at Fukushima and the two 70-meter pumps being moved from the U.S., a contractor in Vietnam has given up a 58-meter pump so it can be diverted to Japan, and two 62-meter pumps in Germany were loaded on Wednesday for transport to Tokyo.

Ashmore said officials have already notified Shaw AREVA MOX Services, which is building the MOX plant for the U.S. Department of Energy's National Nuclear Security Administration, that the pump was being moved and will not be returned because it will become contaminated by radiation.

"It will be too hot to come back," Ashmore said.

The MOX complex, scheduled to open in 2016, is designed to dispose of 32 metric tons of plutonium from dismantled nuclear bombs by blending small amounts of the material with uranium to make nuclear fuel for commercial power reactors. Its design calls for 170,000 cubic yards of concrete strengthened with 35,000 tons of reinforcing steel bars.

The absence of the pump will not affect the U.S. project's construction schedule, Ashmore said, noting that there are several slightly smaller units still at the MOX site and being used by the civil contractor, Alberici Constructors.

There is also the third existing 70-meter Putzmeister that is in the U.S., but not in a state where it could easily be retrofitted for shipment to Japan.

"We may try to buy that one later if we need to," he said.

Reach Rob Pavey at (706) 868-1222, ext. 119, or rob.pavey@augustachronicle.com.

COREY PERRINE/STAFF

Jerry Ashmore of Augusta-based Ashmore Concrete Contractors, Inc. says one the the world's largest concrete pumps is needed to help stabilize the Fukushima reactors in Japan. The 190,000-pound pump should be en route to Japan by next week.

. The 190,000-pound pump should be en route to Japan next week. \nCOREY PERRINE/STAFF

The pump has a 70-meter boom and can be controlled remotely, which will be beneficial in the unpredictable radioactive environment surrounding Japan's doomed nuclear reactors. \nCOREY PERRINE/STAFF

Jerry Ashmore shows off the hopper used to keep concrete agitated when poured onto a 52-meter crane truck. Ashmore says that the donated pump will not be returned from Japan because it will become contaminated by radiation. Its absence won't affect construction at the MOX facility at SRS, he says. \nSPECIAL

The concrete pump was moved from the construction site in Aiken County to Hanahan, S.C., on Wednesday. It will be trucked to Atlanta's Hartsfield-Jackson International Airport and fly on the world's largest cargo plane to Tokyo.
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